Make the generic armv8 config pretend it has a 2nd arch.

Needed to fix the current build breakage:
- Compiling libart-compiler with arm64 support only doesn't work
  after bp move
- There's a discrepancy between the libart-compiler rule (defined
  in .bp file) and executables (defined in .mk files) about which
  codegens are enabled.

Change-Id: I5372c6a1d2e1e2462ef8671eef3a2337517ec0c8
1 file changed
tree: ee29e921aa48a8352fefe7e9fdbe2524b4d74a93
  1. arm_krait/
  2. armv8/
  3. mips32r2_fp/
  4. mips32r2_fp_xburst/
  5. mips64r6/
  6. silvermont/